A1:
 [ {0, 0, 0, 0} {3, 0, 1, 1} {2, 0, 2, 2} {1, 0, 3, 3} {0, 0, 0, 0} {3, 0, 1, 1} {2, 0, 2, 2} ]
 [ {0, 1, 0, 1} {0, 1, 1, 2} {0, 1, 2, 3} {0, 1, 3, 0} {0, 1, 0, 1} {0, 1, 1, 2} {0, 1, 2, 3} ]
 [ {0, 2, 0, 2} {1, 2, 1, 3} {2, 2, 2, 0} {3, 2, 3, 1} {0, 2, 0, 2} {1, 2, 1, 3} {2, 2, 2, 0} ]
 [ {0, 3, 0, 3} {2, 3, 1, 0} {0, 3, 2, 1} {2, 3, 3, 2} {0, 3, 0, 3} {2, 3, 1, 0} {0, 3, 2, 1} ]
